Worked more on 04-numbers (about half-way throught the floating point part)
Fixed the lab 2 UML diagram; the daily announcements slide set can now have a canvas, which necessitated edits to js/canvas.js
Finished converting the 04-numbers slide set, although it likely needs minor edtiing
Added the UNIX tutorial, which was copied from http://www.ee.surrey.ac.uk/Teaching/Unix/
Added lab 3, although it still needs a full edit; minor updates to README.md; updated utils/convert
Updates for tomorrow's lecture; added git-pull-hook.php
Merge branch 'master' of github.com:aaronbloomfield/pdr
Converted lab02.md -> lab02.html after pull request #4